| Romanshorn to Derecik | 1,906.93 mi (3,068.90 km) |
| Romanshorn to Dereli | 1,506.50 mi (2,424.47 km) |
| Romanshorn to Derik | 1,711.22 mi (2,753.95 km) |
| Romanshorn to Derinkuyu | 1,422.71 mi (2,289.63 km) |
| Romanshorn to Develi | 1,455.97 mi (2,343.15 km) |
| Romanshorn to Dicle | 1,664.02 mi (2,677.98 km) |
| Romanshorn to Digor | 1,749.05 mi (2,814.82 km) |
| Romanshorn to Dikili | 1,054.95 mi (1,697.78 km) |
| Romanshorn to Divrigi | 1,538.47 mi (2,475.92 km) |
| Romanshorn to Diyadin | 1,789.03 mi (2,879.17 km) |
| Romanshorn to Diyarbakir | 1,689.03 mi (2,718.22 km) |
| Romanshorn to Doganhisar | 1,297.68 mi (2,088.42 km) |
| Romanshorn to Dogansehir | 1,574.69 mi (2,534.22 km) |
| Romanshorn to Dogubayazit | 1,807.65 mi (2,909.13 km) |
| Romanshorn to Domanic | 1,140.80 mi (1,835.94 km) |
